eltasol RESOL DeltaSol M Manual Installation Operation Commissioning Fault localisation for the professional

Transcription

1 RESOL DeltaSol M Manual for the professional Installation Operation Commissioning Fault localisation Thanks for buying a RESOL. Read this manual carefully to get the best perfomance from this unit. DeltaS eltasol M

2 Contents Security instructions and imprint... 2 Technical data and functional survey... 3 Examples of application Installation Mounting Electrical connection Connection survey Sensors Acutators Bus-connection Power connection Basic systems and hydraulic versions Survey of relay allocation Survey of sensor allocation Sensors Temperature sensors Irradiation sensors Flowmeter Remote control Outdoor temperature sensor Basics of operation Operating elements and display Control lamps Menu structure Menu branch Functions and options Commissioning Commissioning of the Controller Set for use with Solar cell Balancing without flow meter V Balancing with flow meter V Tips for fault localization Imprint This mounting- and operation manual including all parts is copyrighted. Ather use outside the copyright requires the approval of RESOL - Elektronische Regelungen GmbH. This especially applies for copies, translations, micro films and the storage into electronic systems. Editor: RESOL - Elektronische Regelungen GmbH Important tice: We took a lot of care over the texts and drawings of this manual and to the best of our kwledge and consent. As faults can never be excluded, please te: Your own calculations and plans under consideration of the current rms and DIN-directions should only be basis for your projects. We don t offer a guarantee for the completeness of the drawings and texts of this manual - they only represent some examples. They can only be used on own risk. No liability is assumed for incorrect, incomplete or false information and the resulting damages. Errors and technical changes excepted Security advice Please carefully read the manual for mounting and installation before commissionig the controller. In this way damages to the system can be avoided. Please also te that the installation must be adapted to the conditions provided by the customer. The installation and operation must be executed according to the approved technical regulations. The regulations for prevention of industrial accidents of industrial injuries corporations must be observed. The improper use as well as the incorrect modification of installation and construction result in the exclusion of any kind of liability. The following technical rules must especially be considered: DIN 4757, Part 1 Solar heating plants with water and water mixtures as heat transfer medium; Standards for safety regulations DIN 4757, Part 2 Solar heating plants with organic heat transfer mediums; Standards for the safety regulations DIN 4757, Part 3 Solar heating plants; solar panels; terms; safety regulations: checking of the shutdown temperature DIN 4757, Part 4 Solar thermal plants; solar panels; determination of degree of efficiency, capacity of warmth and presssure drop. European CE-standards are being developed presently: PrEN Thermal solar plants and their components; collectors, part 1: general standards PrEN Thermal solar plants and their components; collectors, part 2: test methods PrEN Thermal solar plants an their components; prefabricated plants, part 1: general standards PrEN Thermal solar plants an their components; prefabricated plants, part 2: test methods PrEN Thermal solar plants and their components; user-specific fabricated plants, part 1: general standards PrEN Thermal solar plants and their components; user-specific fabricated plants, part 2: test methods PrEN Thermal solar plants and their components; user-specific fabricated plants, part 3: efficieny test of hot water tank 2

3 Scheme of the controller Menu-driven text display 15 sensor inputs 9 relay outputs 7 basic solar systems add-on options and functions free allocation for temperature difference and thermostat function RESOL V-BUS and RS- 232 interface parameterization and control of the system by RESOL service center software Technical data DeltaSol M Housing: plug-in plastic, PC-ABS and PMMA Protection type: IP 20 / DIN Ambient temp.: C Size: 260 x 216 x 64 mm Installation: wall mounting, also suitable for mounting into patch panels Display: 4-digit LC-text display (illuminated), menu-driven (multilingual), 2-coloured LED Operation: Functions: Sensor inputs: Relay outputs: Bus: 3 pushbuttons in the front of the housing Solar system controller for use in solar- and heating systems. Two integrated calorimeters and control of a wheathercompensated heating circuit. Adjustable system parameter and add-on options (menu-driven), balance- and diagstic functions, function control according to BAW-guidelines. 12 temperature sensors Pt1000 or 11 sensors PT1000 and 1 remote control RTA11, 2 flowmeter RESOL V40 and 1 solar cell RESOL CS10. 9 relay outputs, 4 of them are standars ones, 4 semi-conductor relays and 1 potential-free relay. RESOL VBus, RS232 cover clamp covering cable conduits with strain relief housing LED text display Power supply: V~, Hz Power consumption: 6,3 (1) A 250 V~ Degree of pollution: 2 Rated impulse voltage: 2,5 kv Ball pressure check: 75 C Mode of operation: Typ 1.c Electrostratic discharge can lead to damages of electronic components. Attention high-voltage carrying components. LED key field clamps base 3

4 Examples of application DeltaSol M Standard solar system with 1 store Standard solar system with 2 stores Standard solar system with 3 stores Standard solar system with 4 stores Standard solar system with east/west collectors and 1 store Standard solar system with east/west collectors and 2 stores Standard solar system with east/west collectors and 3 stores Standard solar system with east/west collectors, external heat exchanger and 2 stores Combined solar/heating system with external heat exchanger and combined store as well as reverse raising Combined solar/heating system with after-heating by solid fuel boiler and control of a circulation pump Solar system with external heat exhanger and 2 stores Solar system, 1 combined store wiht reverse raising (heating backup) Solar system wiht layered store, external heat exchanger and after-hesting Solar system with 1 store, heaating backup and heat exchange regulation for existing domestic water store Combied solar/swimmingpool system with heat exchange regulation for existing domestic water store The given examples only show a little choice of the possible applications. Further application examples can be found in the DeltaSol M system collection. 4

5 1. Installation 1.1 Mounting 1. Attention! Switch-off power supply before opening the housing! The unit must only be located internally. It is t suitable for installation in hazardous locations and should t be sited near to any electromagnetic field. The controller must additionally be equipped with an all-polar gap of at least 3 mm or with a gap according to the valid installaton regulations, e.g. LS-switches or fuses. Please pay attention to a seperate laying of the cable lines and installation of ac power supply Unscrew the cross-recessed screw of the cover and remove it from the housing. Unscrew w the crossrecessed screws from the clamp cover and remove it. 2. Mark the upper fastening point on the underground and premount the enclosed dowel and screw. 2. Hang up the housing at the upper fastening point and mark the lower fastening point on the underground (hole center distance 160 mm, see back of the base), afterwards fit the lower dowel. Hang up the housing at the top and fix it with the lower fastening screw. 3. Connect relay- and sensor cables as well as power cable according to clamp allocation and fix the ccables with strain-relief. 4. Reinsert clamp cover and cover of the housing and fix them with cross-recessed screws. Tip: A cable conduit (e.g. 60 x 110 mm²) should be directly mounted below the controller in order to faciliate the connection of the cables and to guarantee a clear running of the cables.the cables must be brought into the terminal block with removed cable insulation. Scope of accessory bag: 2 x screws and dowels 1 x spare fuse T6,3A 11x strain relief and screw 3 x condenser 4,7 nf 5

6 1.2 Electrical wiring Connection survey MAIN MENU MEASURED VALUES MESSAGES SOLAR fuse T6,3A power terminal sensor terminals neutral conductor terminal sensor earth terminal strip V-Bus RS232 consumer terminals protective earth conductor terminal Sensors The controller is totally equipped with 15 sensor inputs. The earth connection for sensors is effected by the earth terminal strip (GND). The temperature sensors are connected to the terminals S1... S12 and GND (regardless of the polarity). The irradiation sensor (CS10) is to be connected to the terminals CS10 and GND (in consideration of the polarity!). The connection of the irradiation sensor with 6 the identification A (ade) is connected to ther terminal CS10 and the connection with the idientification K (cathode) is connected to the terminal GND. Two flowmeters RESOL V40 can be connected to the terminals lmp1, lmp2 and GND (regardless of the polarity). A remote control RESOL RTA11 can alternatively be connected to the terminal S10 (factory setting).

7 1.2.3 Actuators Please te: the relays R1 up to R4 are designed as semiconductor relays for pump speed control. A minimum load of 20 W (power consumption of the consumer) is required for faultless function. The enclosed condenser must be paralleley connected to the respective relay output for connection of auxiliary relays, motor valves, etc. Attention: The minimum pump speed must be set to 100% for connecting of auxiliary relays or valves. L N PE Netz / Mains 230 V~ 50 Hz The controller is totally equipped with 9 relays, to which the consumer (actuators), e. g. pumps, valves, mixer and auxiliary relays can be connected: The relays R1...R4 are semi-conductor relays, also suited for pump speed control. R1-A... R4-A = rmally open R1... R4 N = neutral conductor (collective terminal strip) PE = protective earth conductor (collective terminal strip) Bus The relays R5... R8 are electromagnetic relays with change-over contact. R5-A... R8-A = rmally open R5... R8 R5-R... R8-R = break contact R5... R8 N = neutral conductor (collective terminal strip) PE = protective earth conductor (collective terminal strip) The relay R9 ist ein potenzialfreies Relais mit Wechselkontakt: R9-M = center contactr9 R9-A = rmally open R9 R9-R = break contact R9 The controller is equipped with two bus interfaces for data transfer: 1.) The RESOL VBus for data transfer with and energy supply of external modules. The connection is effected at the two terminals marked "VBus " (any polarity). One or more RESOL VBus modules can be connected by this Data-Bus: RESOL WMZ-M1, calorimeter module RESOL large displays RESOL HKM, modular heating circuit expansion V-Bus screw terminals RS232-Connection RJ45-jack 2.) The RS232-interface for direct connection to a PC. Measured values and parameter of the controller can be read out, adjusted processed and visualised by means of the evaluation tool RSC (Resol Service Center Software). The software makes possible a comfortable paramatrisation and function control of the system. 7

8 1.2.5 Power supply Power supply:: 3 = conductor L 2 = neutral conductor N (collective terminal strip) 1 = protective earth conductor (collective terminal strip) L N PE Netz / Mains 230 V~ 50 Hz The power supply to the controller must be effected by an external power switch (last procedure) and the supply voltage must be Volt ( Hz). Flexible lines must be fixed at the housing or in a cable conduit (see tip on page 5) by the enclosed strain relief clamps and respective screws. 2. Basic systems and hydraulic versions The controller is programmed for 7 basic solar systems. Please see the following diagrams for connection of the sensors and relay allocation for the 7 basic systems as well as the most important versions. More examples can be found in the DeltaSol M system book. System 1 System 2 variation 1 System 2 variation 2 System 3 variation 1 System 3 variation 2 System 3 variation 3 System 4 variation 1 System 4 variation 2 System 4 variation 3 System 4 variation 4 System 5 variation 1 System 5 variation 2 System 6 variation 1 System 6 variation 2 System 6 variation 3 System 7 variation 1 System 7 variation 2 8

9 Example: Relay allocation system 2 1 pump collector 1 relay way-valve collector 1 The tabular survey shows the standard relay- and sensor allocation for the 7 basic systems with their hydraulic posibilities (see relay-and sensor allocation for the basic systems on page 8). Explanation: 1.) System 2 / version 1, pump for collector 1 at relay output 1 2.) System 2 / version 2, 2-way valve for collector 1 at relay output 1 The controller is equipped with 10 thermostat functions, 5 additional temperature difference functions (DeltaT) and 5 timers.these functions are combined into function blocks which are allocated to the relay outputs. Function Function block Thermostat Thermostat 1 Thermostat 2 Thermostat 3 Thermostat 4 Thermostat 5 Thermostat 6 Thermostat 7 Thermostat 8 Thermostat 9 Thermostat 10 Difference funtion T T 5 T 6 T 7 T 8 T 9 Timer function Timer 1 Timer 2 Timer 3 Timer 4 Timer Survey of the relay allocations Relay allocation system 1 Relay 1 Relay 2 Solar pump External heat exchanger Relay 3 Function block 1 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 Cooling function Bypass, DVGW, Parallel relay Function block 2, store charge controller, afterheating (HC) Function block 3, mixer ON (HC) Function block 4, mixer OFF (HC) Function block 5, Error message, after-heating depression, pump (HC) Relay allocation system 2 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 1 Pump collector way valve collector 1 1 Pump collector way-valve collector 2 Function block 1 1 External heat exchanger 2 Solar pump Cooling function Bypass, DVGW, Parallel relay Function block 2, store charge controller, parallel relay Function block 3,mixer ON (HC) Function block 4, mixer OFF (HC) Function block 5, error message, after-heating depression, pump (HC) 9

10 Relay allocation system 3 Relay 1 Relay 2 Relay allocation system 5 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 1 Solar pump 2 Solar pump, store 1 3 Solar pump 1 external heat exchanger 2 external heat exchanger 3 2-way-valve store 1 Relay 3 Function block 1 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay way-valve store Solar pump store way-valve store 2 Bypass, DVGW, parallel relays Function block 2, store charge controller, afterheating Function block 3,mixer ON (HC) Function block 4, mixer OFF (HC) Function block 5, error message, after-heating depression, pump (HC) 1 Solar pump 2 Solar pump store way-valve store 1 2 Solar pump store 2 Function block 1 external heat exchanger 1 2-way-valve store 2 2 Solar pump store way-valve store Function block 2, DVGW, parallel relays, Bypass store charge controller, afterheating (HK) Function block 3, mixer on (HC) Function block 4, mixer off (HC) Function block 5, error message, after heating depression, pump (HC) Relay allocation system 4 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 1 Solar pump 1 2 Solar pump way-valve collector way-valve collector 1 1 Solar pump 2 2 Solar pump way-valve collector way-valve collector 2 Function block 1 1 external heat exchanger 2 2-way-valve store 1 3 Solar pump store 1 4 Solar pump 1 3-way-valve store way-valve store 2 3 Solar pump store way-valve store 1-2 Bypass, DVGW, parallel relays Function block 2, store charge controller, afterheating Function block 3, mixer on (HC) Function block 4, mixer off (HC) Function block 5, error message, after-heating depression, pump (HC) 10

11 Relay allocation system 6 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 1 Solar pump 1 2 Solar pump store way-valve collector 1 1 Solar pump 2 2 Solar pump store way-valve collector 2 Function block 1, DVGW, parallel relay, Bypass external heat exchanger, after-heating (HK) 3 Solar pump way-valve store 1 2 Solar pump store way-valve store way-valve store way-valve collector way-valve collector way-valve store way-valve collector way-valve store 3 Function block 3, mixer on (HC) Function block 4, mixer off (HC) Function block 5, error message, after-heating depression, pump (HC) Relay allocation system 7 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 Relay 8 Relay 9 1 Solar pump 2 Solar pump store way-valve store 1 2 Solar pump store 2 Function block 1, DVGW, parallel relay, bypass, external heat exchanger, after-heating (HC) 1 2-way-valve store 2 2 Solar pump store way-valve store 3 2 Solar pump store way-valve store Function block 3, mixer on (HC) Function block 4, mixer off (HC) Function block 5, error messages, after-heating depression, pump (HC) 11

12 2.2 Survey of sensor allocation Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 1 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Th 2, T2 T 5 Sensor 5 Th 3, T1 T 6 Sensor 6 Th 4, T2 T 6 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow) RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T exterior (HC) Th 9, T1 T 9 T2 WMZ 2 (return flow) T-Sp (HC) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 2 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Th 2, T2 T 5 Sensor 5 Th 3, T1 T 6 Sensor 6 Tcol2, Th 4, T2 T 6 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HK) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HK) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T exterior (HK) Th 9, T1 T 9 T2 WMZ 2 (return flow), T-St (HK) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 3 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Tsp2u, Th 2, T2 T 5 Sensor 5 Th 3, T1 T 6 Sensor 6 Th 4, T2 T 6 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T exterior(hc) Th 9, T1 T 9 T2 WMZ 2 (return flow), T-St (HC) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 4 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Tst2, Th 2, T2 T 5 Sensor 5 Th 3, T1 T 6 Sensor 6 Tcol2, Th 4, T2 T 6 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T-exterior (HC) Th 9, T1 T 9 T2 WMZ 2 (return flow) T-St (HC) Th 10, T2 T 9 Impulse input1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 12

13 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 5 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Tst2, Th 2, T2 T 5 Sensor 5 Tst3, Th 3, T1 T 6 Sensor 6 Th4, T2 T 6 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T-exterior (HC) Th 9, T1 T 9 T2 WMZ 2 (return flow), T-Sp (HC) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 6 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Tst, Th 2, T2 T 5 Sensor 5 Sensor 6 Tst3 Tcol2 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T exterior (HC) Th 9, T1 T 9 T2 WMZ 2 (return flow), T-Sp (HC) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 Sensor 1 Sensor 2 Sensor 3 Sensor allocation system 7 Tcol Tst, DVGW Th 1, Tby, T-WT, T1 T 5 Sensor 4 Tst2, Th 2, T2 T 5 Sensor 5 Sensor 6 Tst3 Tst4 Sensor 7 Th 5, T1 T 7 Sensor 8 Th 6, T2 T 7 Sensor 9 Sensor 10 Sensor 11 Sensor 12 T1 WMZ1 (feed flow), T feed flow (HC) Th 7, T1 T 8 T2 WMZ1 (return flow), RTA11 (HC) Th 8, T2 T 8 T1 WMZ 2 (feed flow), T exterior (HC) Th 9, T1 T 9 T2 WMZ 2 (return flow), T-St (HC) Th 10, T2 T 9 Impulse input 1 V40 WMZ 1 Impulse input 2 V40 WMZ 2 13

14 3. Sensors 3.1 Temperature sensors Note: In order to avoid overvoltage damages at collector sensors (e.g. from local lightning storms), we recommend to install the overvoltage protection RESOL SP Irradiation sensor Precision-platin sensors type PT1000 (FKP and FRP) are used for the controller RESOL DeltaSol M. Depending on the individual solar system, the RESOL product range contains 3 different sensor types: sensors with immersion sleeves, flatscrew sensors and cylindrical clip-on sensors. The sensor types FK and FR have the same electrical features and are available in the same models, they only differ in the connecting cable: FK: 1,5 m weather- and temperature resistant silicone cable for temperatures between -50 C C, mostly used for collectors. FR: 2,5 m PVC cable for temperatures between -5 C C, mostly used for stores. Make sure that all electrical works are carried out according to the relevant local and IEE-regulations. The sensor cables carry low voltages and they must t run together in a cable conduit with cables carrying higher voltages than 50 Volts. When using longer cables or cable conduits, please use screened cables. The sensor cables can be lengthened up to 100 m, but the cross section must be 1,5 mm² (or 0,75 mm² up to a cable length of 50 m); screened cables should be used preferably. The sensors must t be in direct contact with water, please always use immersion sleeves. The solar cell is used for recording of the momentary irradiation intensity. The short-circuit flow rises with the increase of irradiation intensity. The relation between the short-circuit flow and the irradiation intensity is directly proportional. The connecting cord can be expanded up to 100 m. 3.3 Flowmeter 3.4 Remote control 14 The RESOL V40 is a measuring instrument with contact donator for recording the flow of water or water/glycol mixtures and is used in combination with the calorimeter integrated into the DeltaS eltasol M. After flow of a specific volume, the V40 sends an impulse to the calorimeter. The used heat amount is measured by these impulses and a measured temperature difference with the help of predefined parameters (glycol type, concentration, heat cpacity, etc.). The remote control RTA11 allows a comfortable adjustment of the heating curve of the controller from the living room.the rise of the heating curve causes an increase in flow temperature, a fall causes a decrease. The remote control additionnally contains the functions "heating circuitoff" and "fast heating-up".

15 3.5 Outdoor temperature sensor The outdoor temperature sensor FAP12 is suitable for mounting on even surfaces and it is needed for DeltaSol M s weather controlled heating curcuit. The sensor has a wether resistant housing. 4. Basics of operation 4.1 Operating devices and display Text display MAIN MENU MEASURED VALUES MESSAGES SOLAR control lamp backward Set forward The controller is only operated by the 3 pushbuttons beside the display. The forward-button (1) is used for scrolling forward through the menu or to increase the adjustment values. The backward-button (2) is accordingly used the other way round. Button 3 is used for selection of the menu lines and confirmation. Plese select your requested menu by the buttons 1 and 2. Shortly press button 3, the selected submenu is w shown on the display. By pressing the "back"-button, the display returns to the former menu level. Press buttons 1, 2 and 3 several times until the choosen menu line is reached. Shortly press button 3 in the relevant menu line for modification of adjustment values - "change value" appears on the display - adjust the requested value by pressing the buttons 1 and 2 (for large intervals, please keep the button pressed). Shortly press button 3 in order to confirm the adjustment. Please reply to the following security request "Store?" by choosing "" or "" (buttons 1 and 2) and confirm with button 3. Note: If input is made within 7 seconds in the modification mode, the controller automatically changes into the read-out mode. If button is pressed for 4 minutes in the read-out menu, the display returns to the measuredvalues menu (in case of an existing message,the display changes into the message menu). If button 3 is pressed for 2 seconds, the display goes back to the main menu. 4.2 Control lamp MAIN MENU MEASURED VALUES MESSAGES SOLAR The controller is equipped with a red-/green control lamp. The following control and system status are signalised: green flashing: automatic operation, malfunction red flashing: malfunction of the system 15

16 4.3 Menu structure Note: The selectable adjustment values and options depend on the different functions and only appear on the display if they are available for the adjusted system parameter and cleared for the relevant user code. User codes: 1.Expert-code 262 (factory setting): All menus and adjustment values are shown and all adjustments can be changed. 2. User-code 077 The expert level is shown, the parameter access is restricted. 3. Customer-code 000 The expert level is blinded out, change of parameter and balance values is possible. The customer-code should be set to 000. The adjustment and control of the controller is effected by the menu. For first operation, the indiaction level is in the main menu. In the first line of each submenu you will find the option "return", by which the read-out can be reset by one menu level. In the following diagrams you will find the complete menu contents; as some of the menu points depend on a system, option or a message, in some cases t all of the shown text lines are indicated. "Main menu" is shown on the display in original position. A selection can be made between the following 9 menus: Main menu 1. Measured values 2. Messages 3. solar 4. System 5. WMZ 6. Manual operation 7. User code 8. Expert The clear text display shows a 4-line part of the selected menu. Backward Set (selection / confirmation) Forward Tip: After first commissioning, the measuring value menu ist shown in the basic level. In order to simplify the operation, RETURN is t shown in the menu. If button 3 is shortly pressed, a change into the superior menu. If button 3 is pressed longer than 3 seconds in all menus, the controller immediately returns into the menu "measured values". 16

17 4.4 Menu branch: Main menu Measured values Messages Chimney sweeper Solar System WMZ Manual mode User code Expert Solar Set values Balance values Options Expert Solar Expert Regulation Regulation heat exchanger System Set values Heating circuits Options Expert Heating circuits Heating circuit Heating circuit module Options System set values Timer 1-4 (daily program) Heating circuit Timer (weekly program) Expert System expert System regulation T5 HC-module Timer (weekly program) WMZ HC-Options heating circuit module WMZ1 WMZ2 WMZ module Options WMZ2 Expert WMZ1 Expert Expert Chimney sweeper Sensors Relay Language Some menu items are system- and/or option dependant or message dependant (white background of menu lines). In individual cases t all listed or additional text lines are displayed. 17

18 5. Functions and options Pump speed control: Solar/Expert/SOLAR CONTROL/TypE 1. ne pump speed control deactivated 2. RISE Standard-pump speed control (factory setting) 3. PI-Reg. special pump speed control, more information on inquiry. Expert/RelaY/Min-SPEED1 (2,3,4) Target temperature: set Solar/Options/TARGET TEMP. to YES Solar/sol.adjust.val./TCOLLSET The relais 1 to 4 are designed as semicoductors for usual stadard pumps to adjust the pump speed. The relative pump speed controll is adjustable in 10% measures of the current temperature difference between collector- and store temperature. At which temperature difference the pump speed is increased can be adjustet by the parameter Rise. In some cases is it necessary to revise the factory setting of the minimum pump speed (30%). To set the pump speed indipendent from the collector temperature (to keep the collector temperature constant). Therefor the depency of the temperature difference is detached. In order to adjust the set collector temperature us set value TCOLLSET. Bilancing function: Solar/balance values Heat quantity balancing: WmZ/WMZ1 (2) set WMZ/Options/WMZ1 (2) to YES. set WMZ/WMZ1 (2)/Expert/Sen.-flow e.g. 1 set WMZ/WMZ1 (2)/Expert/Sen.-return e.g. 1 set WMZ/WMZ1 (2)/Expert/flow set WMZ/WMZ1 (2)/Expert/RelaY set WMZ/Options/WMZ1 (2) to. set WMZ/WMZ1 (2)/Expert/Sen.-flow e.g. 9 set WMZ/WMZ1 (2)/Expert/Sen.-return e.g. 10 set WMZ/WMZ1 (2)/Expert/flowmeter to Yes set WMZ/WMZ1 (2)/Expert/vol/puls accordingly The controller possesses an integrated bilancing function with it maximum temperatures, hours of operation of the relais and operation time since commissioning the controller can be asked. These values can be reset except of the counter Operating days. The controller possesses 2 integrated heat amount counter which enables the 2 principles of heat quantity balancing functions. The information in Wh, kwh and MWh has to be added together. Bilancing without flowmeter RESOL V40 The balancing takes place as estimation with the aid of the difference between flow- and return temperature and the adjusted flow rate. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. The bilancing is realised when the selected output Relais is activated. Bilancing with flowmeter RESOL V40 The bilancing takes place with the assistance of the difference between the flow and return temperature and the volume flow, measured by the flowmeter. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. Antifreeze: 0: water 1: propylene glycol 2: ethylene glycol 3: Tyfocor LS / G-LS Antifreeze: Adjustment channel water / glykol Adjustment rage Vol % factory setting 40 % 18

19 Hydraulics variants: Solar/Options/loading Menu-Language: Expert/LANGuage Functio block: arrangement/options Example functional switching circuit 1: set arrangement/options/thermo.1 to YES. set arrangement/options/ T-Func9 to YES. set arrangement/expert/sen.-th1 e.g. 4. set arrangement/expert/sen1- T5 e.g. 4. set arrangement/expert/sen2- T5 e.g. 5. The systems can be distiguished into pump- and ventil-driven systems. The adjustment takes place according the survey of the system with its hydraulic variants (see page 8). You find in the menu languages different selectable languages. Depending on the selected system or activated options there are up to 5 function blocks and they are composed of thermostat function, timer and difference functions (see page 9). With these, further components or functions e.g. solid fuel boiler, heater support and after heating can be realised. These function blocks are assigned to different relais depending on the selected system (see survey of relais allocation). The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. Function blocks fuctions are linked together. T-Function (Function block ): arrangement/options This option activates on if the adjusted switch-on temperature difference is exeeded and switches-off if the measured temperature difference falls below the adjusted switch-off temperature difference.the reference sensor is selectable in the expert menu. Thermostat-Function (Function block ): arrangement/options This option switches on if the selected switch-on tempeature is reached and switches-off if the selected switch-off temperature is exeeded. The reference sensor is selectable in the expert menu. Maximum store temperature: Tspmax: Adjustment range C Factory setting 60 C Hysteresis 2 K (Factory setting) If the adjusted maximum temperature Tspmax is exeeded, the loading of the store is stopped. If the store cools down by more than 2 K, the store loading starts again. Security switch-off of the store: Fixed value 95 C Hysteresis = 2 K Store blocked: If the cooling option is activated (e.g. collector cooling), the store is charged beyond the adjusted maximum temperature. In order to avoid too high temperature in the store, the security switch-off of the store is additionally provided, which also blocks the store for cooling option. If a store temperature of 95 C is reached, the security switch-off is activated. A store is blocked if either the belonging sensor is defect or the security switch-off temperature is reached. 19

20 Collector security switch-off: Tcolt: Adjustment range C Factory setting 130 C Hysteresis 10 K In case of high collector temperatures (dependant on e.g. system pressure or content of frost protection), the heat transport medium evaporates. That means, that a solar charge is longer possible. If the adjusted temperature threshold Tcolsec is exceeded, the charge at each collector is suspended. Note: if the option "collector cooling" is activated, the security switch-off temperature can t be adjusted lower than the maximum collector temperature (Tcolmax). Collector blocked: A collector is considered to be blocked if either the sensor is defect or the securtiy switch-off temperature is reached. Solar collector blocked: Tcolmin: Adjustment range C Factory setting 10 C Hyteresis 2 K A collector for solar operation is considered to be blocked if the adjusted minimum temperature is t exceeded or the condition "collector blocked" is achieved. Store charging: Ton: Adjustment range 1, ,0 K Factory setting 5,0 K Toff: Adjustment range 1, ,5 K Factory setting 3,0 K If the adjusted switch-on difference Ton between collector and store is exceeded, the store is charged. If this difference falls under the adjusted switch-off difference Toff, the store is again charged. The store charge is also suspended if the relevant store or collector is blocked (collector solar blocked) or if the store is at maximum limitation. Cooling function: The cooling function can be used in 1-store systems. If the store is at maximum limitation, the surplus energy in the collector can be derived. The pump output (provided that it is activated) is controlled with relative maximum pump speed. Operation mode (switching conditions): If the store is at maximum limitation and the switch-on temperature difference DeltaTon between collector and store is reached, the solar circuit (primary) and the cooling relay are operated. If the switch-off temperature difference Toff is underrun in this period, the solar circuit and the cooling relay are switched-off. 2-collector systems: Only the collector circuit, which complies with the above described switch-on criteria, is operated in these systems. 20

21 Frost protection: As soon as 4 C are reached at the collector, the frost protection function operates the loading circuit between collector and 1st store in order to protect the medium in the loading circuit against freezing or coagulation. If the collector temperature exceeds 5 C, this function is switched-off. If the 1st store is blocked in the system, this function ids suspended. The pump output is controlled with relative maximum pump speed (provided that the function is activated). 2-collector systems: Only that circuit is operated, which complies with the above-mentioned switch-on conditions. Chimney sweeper: This function is used for activating a fixed relay condition if it is required. Because of that e.g. in case of flue gas measurement made by the chimney sweeper, the relays required for activation of the boiler can be switched-on. The required relay status is adjusted in the chimney sweeper menu (Expert/Chimney sweeper). St2on... St4off: Collector cooling function: Tcolmax: Adjustment range C Factory setting 110 C Hysteresis 5 K By means of this function, the respective store can be "removed" from the solar regulation, that means that it is longer considered for solar charge. The temperature of the store is furthermore indicated but a sensor defect is longer signalised. The collector cooling function starts if the adjusted maximum collector temperature is reached. If this temperature is underrun by 5 K, this function is switchedoff. The collector is cooled by the heat dissipation to the next free store, that means to a store which is t blocked. The numerically last store is t considered (swimming pool protection). The pump output is controlled with relative maximum pump speed (provided that it is activated). Note: it is t possible to adjust the maximum collector temperature (Tcolmax) higher than the collector security switch-off temperature. 2-collector systems: 2 separate collector circuits (2 pumps): Only that collector circuit, which needs to be cooled, is operated. If one store is charged right w by ather collector, this charge is continued. common collector circuits (1 pump): The "pump speed" of the pump acts upon collector cooling. A parallely operating store charge by the 2nd collector is subordinated. 21

22 Recooling: Activating: Tst Tstmax Hysteresis 2 K This function is used for keeping the system temperatures and consequently the thermal load as low as possible. If all stores of a system have exceeded the maximum temperature, the loading circuit for 1st store is again operated in order to reduce the surplus energy from tubes and collector. This "circulation" is again switched-off if the maximum store temperature is underrun by 2 K. 2-collector systems: Both collector circuits are activated in a 2-collector system. Combined with collector cooling function: Activation: (Tst-Tcol) 5K Deactivation: (Tst-Tcol) < 3 K 2-collector systems: If the option "collector cooling" is activated in addition to the recooling function, the response action of the recooling function changes. The objective is w to dissipate the energy supplied by the collector cooling. If the temperature at the collector decreases by 5 K below that of the store, the recooling function is activated and the loading circuit is again operated (for cooling of the store). If the difference between collector and store decreases below 3 K during that cooling period, the function is switched-off. In a 2-collector system, the collectors are separately operated due to the above-desribed switch-on conditions. DVGW: The DVGW-function controls if the temperature at the given sensor (Sen-DVGW) exceeds a temperature of 60 C. If 60 C are t reached up to DVGW start time, this function is activated in order to activate e.g. an after-heating. The function is switched-off when 60 C are reached at the relevant sensor or at midnight (reset). If the relevant sensor does t work, this function is suspended. CS-Bypass: CS-Bypass: Adjustment range W/m 2 Factory setting 200 W/m 2 2-collector systems: f the irradiation exceeds the adjusted value CS-bypass, so that the collector circuit is operated. It is switched-off if the irradiation falls 2 minutes below the value CS-bypass. The collector circuit is operated with minimum pump speed. If a loading of the stores is effected in these systems, the function is switched-off. 22

23 Tube collector special function: This function considers the "unfavourable" sensor positioning of tube collectors. This function operates within a given time slot ("tube-start" and "tube-end"). It activates the collector circuit every 30 minutes at collector standstill (adjustable by parameter "tube collector") for 30 seconds (adjustable by the parameter "tube-run") in order to compensate the delayed temperature measurement. If the collector sensor is faulty or the collector is blocked, this function is suspended or switched-off. The collector circuit is operated with minimum pump speed control. 2-collector systems: 2 separate collector circuits (2 pumps): Both collectors are independantly operated by this function. If store charge is effected by one collector, the other one is nevertheless operated according to the adjusted standstill time. common collector circuit (1 pump): If store charge is effected by one collector, the other one is nevertheless operated according to the adjusted standstill time. That means, that minimum pump speed is adjusted and a possible pump speed is igred by the controller. Bypass: Activation: Tby Tsp + 2,5 K Deactivation: Tby < Tsp + 1,5 K Valve version: In order to avoid energy emission from the store when starting the store charge, this function provides that the cold medium from the lead is passed the store via bypass. If the lead is warm eugh, the store charge can start. The bypass relay is operated if the relevant sensor is 2,5 K higher than store charge temperature and the irradiation condition for store charge (see store charge) is achieved. This function is switched-off if the temperature difference is lower than 1,5 K. Pump version: A bypass pump is advanced to the collector pump in this version. The bypass pump is at first operated in case of a possible store charge. If the above-mentioned switch-on condition is achieved, the bypass pump is switched-off and the collector circuit pump is activated. This version is only available for 1-collector systems. 23

24 External heat exchanger: Activation: T-HE Tst + HE- Ton (collector circuit active) Factory seeting: HE- Ton = 5,0 K Dectivation: T-HE < Tst + HE- Toff Factory setting: HE- Toff = 3,0 K This function is used for reasonable linking of charge circuits, which are separated by an external heat exchanger (different heat transfer media). The heat exchanger relay is operated if the relevant sensor shows a temperature which is by the adjusted value "heat exchanger DeltaTon" higher than the store temperature and the switch-on conditions for store charge (see "store charge") are achieved. The relay is switched-off if this temperature difference falls below the adjusted switch-off difference WT-Delta Toff. In contrast to the bypass function, a differential regulation between T-WT and Tst can be realised by means of the heat exchanger relay. In systems in which stores are equipped with loading pumps, the relay "external heat exchanger" controls the primary circuit pump. Parallel relay: If the solar circuit pump(s) is/are switched-on, this relay is parallely activated. In 2-collector systems which are working with 2 pumps it is activated if one of the 2 pumps are switched-on. Store loading: Activation: Temperature sensor Th3 and sensor Th4 Th3on Deactivation: Temperature sensor Th3 and sensor Th4 Th3off In order to realize the after-heating of a store within a certain store volume (zone), this function needs 2 sensors to control switch-on and switch-off level. The switching-on and -off temperatures of the "free" thermostat 3 (Th3 on and Th3 off) are regarded as reference parameters. The reference sensors can be activated by Sen-Th3 and Sen Th-4. If the measured temperatures at both reference sensors fall below the adjusted switching treshold Th3on, one relay is switched-on. It is switched-off if the temperature at both sensors is higher than Th3 off. If one of the two sensors is faulty, the store loading is suspended or broken off. In addition to that, this option can temporally be blocked by means of the daily timer 2. After-heating-depression: 24 This function is activated if a previously selected solar store (parameter: "Hz-suppr.St" in the menu Solar - Expert) is charged. Solar means that this store loading is only made for energy measurement and t for cooling purpose or something else.

25 Message relay (Error report): System warning "cturnal circulation": This function is activated if a fault is realized by the controller. In that case the message relay is activated (e.g. for pilot lamps) Possible errors are: Sensor defect Real-time-clock defect Ram (EEPROM) defect Please te that a message made by the plausibility control does t activate a relay. This message is shown if the collector temperature between 11 p.m. and 5.00 a.m. is higher than 40 C or a store is charged. In order to avoid release of this message due to short-term disturbences, the above-mentioned release condition must be given for 1 minute. System warning " T too high": This message is shown if a solar loading is effected for a period of 20 minutes with a difference higher than 50 K. Heating curcuit: The controller enables to controll two independent weather controlled heating curcuits. One heating curcuit can be cotrolled by the internal heating curcuit function and one further by the external module RESOL HKM2. Internal heating curcuit control: set arrangement/heat.curcuits/options/heat.curc. to YES Tflow: The value temperature feed flow shows the current flow temperature of the heating medium. Toutd.: The value outside temperature shows the outside temperature influenced by the weather. Flow Set: The measured outside temperature and the adjusted heating curve result the set flow temperature. Onto this the correction value of remote control as well as the day correction or night correction will be added. Set flow temperature = heating curve temperature + remote control + (day correction or night correction). For the case that the set flow tempearature is higher than the adjusted flow maximum temperature, the set flow temperature is equate with the flow maximum temperature. Adjustment range: K Factory setting: -5 K Night corr.: Adjustment channel for the night correction of the heating curcuit. For the night correction daily timer 1 with its 3 time frames (see below) can be adjusted. The set flow temperature will be dropped by the adjusted temperature difference. 25

26 Adjustment range: K Factory setting: 5K Day corr.: Adjustment channel for the day correction of the heating curcuit. The day correction is always activating outlying of the 3 time frames of the night correction. The set flow temperature will be dropped or risen by the adjusted temperature difference. Adjustment range: C Factory setting: 50 C Adjustment range: 0,3... 3,0 Factory setting: 1,0 Tflowmax: Heating curve: Adjustment channel for the maximum tolerable flow temperature of the heating curcuit. By exeeding the maximum flow temperature the heating curcuit will be switched off (the pump is deactivated and the mixer is closed). Dependance of the flow temperature, the outside temperature and the chosen heating curve. Heating curve ,1 90 1,8 Feed flow temperature in C ,5 1,2 0,9 40 0,6 30 0, Outside temperature in C 26

27 Adjustment range: s Factory setting: 4s Mixer: By use of the mixer function it brings more the flow temperature and the set flow temperature in the line. Therefor the mixer is opened or closed accordingly the variation of the clock pulse. The mixer is controlled by the particular timing device. The break is calculated by the variation of the set- and actual value. Adjustment range: C Factory setting: 20 C Summer: Adjustment channel of the summer activity. If the outside temperature exeeds the adjusted value the heating curcuit switches off. Store prio.: This function switches-off the heating curcuit during afterheating. The option service water has to be activated and the boiler loading has to be realised by the DeltaSol M. set arrangement/heat.curcuits/heat.curcuit/store prio. to on Timer: (weekly clock timer) Example: The night correctionruns Tuesday from 22:00 to 6:00 and from 15:00 to 18:00, for it set t1-on to tue,22:00, t1-off to tue,6:00 and t2-on to tue,15:00 and t2-off to tue,18:00. For the case that all time frames are set to 00:00 the night correction is deactivated and the heating curcuit runs 7days, 24h in the daily operation (factory setting). The timer sets either the day correction or the night correction for the change of the set flow temperature is used. 21 different time frames can be set for the night correction. If one of the time frames is set active the night correction is used. For the case that ne of the them is in use the day correction brings more the flow temperature and set flow temperature in line. A time frame is activated when the current time is located between the switch-on and -off point. Sen.flow: set arrangement/heat.curcuits/heat.curcuit/expert/sen.flow e.g. 2 Factory setting: sensor 9 Sen.-outdoor.: set arrangement/heat.curcuits/heat.curcuit/expert/sen.outdoor e.g. 15 factory setting: sensor 11 Adjustment channel for assigning the flow sensor. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. Adjustment channel for assigning the outside temperature sensor. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. Note: By additional use of the module RESOL HKM2 just 1 outside temperature sensor is needed. Since the 2 heating curcuits controll after the same outside temperature the following adjustments have to be made: Aft.-heat.: set arrangement/heat.curcuits/heat.curcuit/expert/aft.-heat to S1(2) store: set arrangement/heat.curcuits/heat.curcuit/expert/s1(2) store e.g. 2 factory setting: Sensor 12 If the store temperature falls below the flow temperature at + 4 K, the after heating switches-on (relais depending on system, see survey allocation of relais ). It switches off if the store temperature oversteps the set flow temperature at + 14 K. Adjustment channel for assigning the store temperature sensors. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. The related temperature Tsp is shown in the menu heating curcuit. 27

28 Man.corr.: set arrangement/heat.curcuits/heat.curcuit/expert/man.corr. to YES The remote control enables a parallely movement of the heating curve (±15 K). In addition the heating curcuit can be switched off via the remorte control. The remote control is optional and it is t included in the full kit. The heating curcuit can be switched off manually, if the remote control is set to the position heating curcuit off. The heating curcuit switches off automaticly, if the adjusted flow maximum temperature is exeeded the outside temperature is higher than the adjusted summer temperature. the flow temperature sensor is defective. Heating curcuit swichtes-off means that the heating curcuit pump is deactivated and the mixer is closed. A rapid heating process of the heating curcuit just take place via a remote control by adjusting it to rapid heat process. It signifies that the heating curcuit heats with the adjusted maximum flow temperature. Sen.remote: set arrangement/heat.curcuits/heat.curcuit/expert/sen.remote e.g. 8 factory setting: Sensor 10 Adjustment channel for assigning the store temperature sensor. The needed sensor must be assigned. Therefor an already used sensor can be applied. Through this its original function is t influenced. The related remote controller correction Hand-cor. is shown in the menu heating curcuit. 28

29 6. Commissioning: 6.1 Commissioning the controller backward Set (selection / confirmation) forward System 1: 1 collector - 1 store System 2: east-/west roof- collectors - 1 store System 3: 1 collector - 2 stores System 4: east-/west roof- collectors - 2 stores System 5: 1 collector - 3 stores System 6: east-/west roof- collectors - 3 stores System 7: 1 collector - 4 stores For first commissioning of the system, the main menu is shown on the display. The adjustments of the controller must perhaps be adapted to an existing system. The operation is effected by 3 pushbuttons: 1. Selct language (arrangement/adj.values). 2. Set time (arrangement/adj.values). 3. Choose system (Solar/options/system). 4. Select options (Solar/options and/or arrangement/ options). 5. In the submenu of the menu Solar and arrangementcheck the controller s parameters and possibly change them. 6. Test the relais. For it switch the accordant relais manually in the menu manual op.. 7. Finally switch-on the automatic operation for the relais in the menu manual op.. The new adjustments are automatically saved and are preserved even in case of power failure. Please te: The controller switches independantly into the menu measured values or message menu if adjustment or change is made within 4 minutes. Please select and shortly press the menu button Return in order to get back to the main menu. In case of adjustments and security inquiries without any change, the controller switches back to the respective menu after 7 seconds. 6.2 Adjustment for operation with solar cell 1. Set type of CS10 (expert/exp.-sensors). 2. Calibrate CS10 (expert/sensors). For the calibration CS10 has to be disconnected! 29

30 7. Tipps for fault localization: Please separate the controller from line voltage before opening the housing. If the controller RESOL DeltaSol M does t work faultlessly, please check the following items: 1. Power supply: Check power supply if the controller if the control lamp for operation is expired. The controller is protected with 1 can fuse. This fuse can be replaced by removing the aperture and clamp cover (spare fuse is enclosed in accessory bag). can fuse T6,3A 30 Resistance values of PT1000-sensors 2. Sensor defect: The control lamp for operation flashes red and a message is shown on the display if there is a malfunction in the control circuit due to a sensor defect. Sensor cable open means that a sensor cable is broken and Sensor line short-circuit is shown for a hot-wired sensor cable with indication of the concerned sensor. In case of sensor defects, the sensor values can be checked. Short-circuit: Short-circuit of a sensor cable with indicaton of the concerned temperature sensor. The error code is shown on the display. Cable break: Interruption of the sensor cable with indication of th concerned temperature sensor. The error code is shown on the display. Disconnected PT1000 temperature sensors can be checked with a resistance meter. Please check the resistances in the table opposite.

31 3. Messages: If a malfunction occurs, a message is given on the display of the controller: Message"!Sensor cable open" / "!Sensor cable short-c." Control lamp flashes Message"?Nocturnal circulation" Indication of a broken or hot-wired cable with indication of the concerned sensor. Message "! T too high" If the collector temperature between 11 p.m. and 5.00 a.m. is higher than 40 C or the present temperature difference is higher than the switch-on temperature difference, this can indicate a heat return current (e.g. due to defect of n-returnvalve). This message is to be seen as warning and it should always be considered in relation to the outdoor temperature. A store has been loaded for a period of at least 20 minutes with a T of 50 K. Possible reasons are a defect pump, defect valve or a calcified heat exchanger. Message "!EEPROM" Message "!RTC": Indicated as malfunction during memory access. In this case, the controller is switched-off for a while and then switchedon again (please check all adjustments). If the fault can be removed in this way, it has been a matter of data communication. But if the fault is still present, the controller should be returned to the manufacturer. Indicates a malfunction of the real-timeclock of the controller. Please switch-off the controller for a while and then switch it on again (please check the set time). If the fault is still present, all temporally controlled functions and options are disturbed. Emergency operation of the system is guaranteed, but the controller should be returned to the manufacturer. 31

32 4. Various: Pump is overheated, but heat transfer from collector to the store, feed flow and return flow are the same warm; perhaps also bubble in the lines. Pump starts for a short moment, switches-off, switches-on again, etc. ("controller jitting") Air in the system? Is the collector circuit plugged at the dirt trap? Exhaust the system; increase the system pressure to at least static primary pressure plus 0,5 bar; if necessary continue to increase pressure; switch the pump for a short time off and on. Too little temperature difference at the controller? Wrong mounting of collector sensors? Change Ton and Toff accordingly. o.k. Clean the dirt trap. Plausibility control of the option tube collector special function Mount the collector sensor at solar feed flow (warmest collector output); use immersion sleeve of the respective collector. Pump starts up very late and stops working soon. The temperature diffrence between store and collector increases ermously during operation; the collector circuit cant dissipate the heat. Too little temperature difference at the controller? Change Ton and Toff accordingly. Collector circuit pump defect? Control / replacement Plausibility control of maximum store temperature Tstmax and security switchoff of the store. o.k. Heat exchanger calcified? Decalification Heat exchanger plugged? Heat exchanger too small? Cleaning New calculation of the dimension. 32

33 Stores are cooling during the night Collector circuit pump runs during the night? Collector temperature is at night higher than ambient temperature. Sufficient store insulation? Check controller Check the return flow preventer in feed flow and return flow with regard to the functional efficiency. Control the return flow preventer in warm water circulation - o.k. The gravitation circulation in the circulation line is to strong; insert a stronger return flow preventer or en electrical 2-way valve behind the circulation pump; the 2-way valve is open in pump operation, otherwise it is closed, connect pump and Further pumps, which are connected to the solar store must also be checked. Clearing or replacement. 2-way valve electrically in parallel; activate the circulation again. Increase insulation. The solar circuit pump does t work, although the collector is obviously warmer than the store. Insulation close eugh to the store? Replace insulation or increase it. Does the control lamp shine? There is current; check fuses / replace them and check power supply. Are the store connections insulated? Warm water outflow upwards? Does the warm water circulation run for a very long time? Circulation pump and blocking valve should be switched-off for 1 night; less store losses? Insulate the connections. Change connection and let the water flow sidewards or through a siphon (bow downwards); less store losses w? Use the circulation pump with timer and switch-off thermostat (energy efficient circulation). Check the pumps of the after-heating circuit according to nightly run and defect return flow preventer; problem solved? o.k. Does the pump starts up in manual operation? Is the current enabled by the controller? Are the fuses at the controller o.k.? Replace fuses. The adjusted temperature difference for starting the pump is to high; choose a value which makes more sense. Is the pump stucked? Put the pump into operation by screwdriver; w passable? Pump is defect - replace it. Controller seems to be defect - replace it. 33